The influence of the network topology on the deformation and fracture behaviour of silica glass : A molecular dynamics study
作者： Firaz Ebrahem , Franz Bamer , Bernd Markert
DOI: 10.1016/J.COMMATSCI.2018.03.017
关键词: Ring (chemistry) 、 Fracture (geology) 、 Deformation (engineering) 、 Composite material 、 Ultimate tensile strength 、 Molecular dynamics 、 Network topology 、 Quenching 、 Tetrahedron 、 Materials science
摘要: Abstract The nano-structural arrangement of silica glass can be analysed based on its short- and medium-range order. latter is represented by rings various sizes composed corner-sharing tetrahedra. In this paper, a topologically motivated explanation the mechanical behaviour provided. We perform classical molecular dynamics simulations to investigate influence ring distribution deformation fracture depending quenching rate. For purpose, we prepare several samples with statistically different vitreous states molten ambient temperature using rates. All are subjected tensile loadings, which demonstrate that depends significantly associated statistics.
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